Following your Enquiry Regarding John Edward Cretney & Elizabeth Gelling I have some information

John Edward CRETNEY Birth: 5TH JUNE 1882 Death 1 Apr 1955
Elizabeth Gelling Birth 7 May 1882 Santan Death 28 Feb 1953
IOMFHS Marriages: CRETNEY, John Edward on 30 Nov 1905 Castletown Santon Vol. 37 GELLING, Elizabeth
Emigrated to New Zealand in 1913
Children Born In New Zealand
John Edward Cretney Birth 26 Jul 1915
Marjory Beatrice Cretney Birth 29 Oct 1916
Annie Isabel Cretney Birth 26 Jan 1919 Death 8 Dec 1968
Douglas Gelling Cretney Birth 2 Nov 1922

Hope this helps.

Allan Cretney